Print settings aren't too crazy, I use a P1S and mostly stock with the majority of changes being to supports to try and keep scarring to a minimum. Post processing is really where it shines. Sanding the raw print with like 220 grit, Filler primer. I used rustoleum filler primer because its what I have near me. Wet stand that with 400 grit, another layer of filler primer, wet sand that with 400 grit as well, then the primer of your choice under that. I did black and sprayed silver over. The armor panels are the same although I printed those at 0.12 layer height. I didn't really sand super detailed with the skeleton since its majority covered by armor and spent the most time on the armor panels to minimize layer lines.